So I'm a member of a WoW community called Tauri.
It's a private server, but apparently it's not illegal because it's Hungarian and in Hungary you can host private servers as long as you follow strict guidelines, I don't understand those laws personally.
Anyway, it's a really good community that just opened a new server for international (non-Hungarian) players and it kind of fell flat because competing servers offered crazier things like x5 experience and stuff like that.
If you're interested in WoW and you don't want to pay a monthly subscription check out http://tauriwow.com/
It's a MoP server (will progress to WoD), the ping is good, it has cross realm BG's/Instances (i think), cross realm mailing and AH. There's just not a lot of players...
It's also the best scripted server currently available, it plays like retail, I've only seen two bugged quests and they fixed within 48 hours.
This is a shameless plug because I want more people to play with
If you want more info let me know!